本文试图用最简单的语言告诉您怎样在2.6写自己的udev规则 从而能够自己为设备命名

Udev allows you to customise the naming of device nodes. There are two reasons why you might want to do this: convenience, and persistent naming.

Default udev rules are stored in /etc/udev/rules.d/50-udev.rules.
You can creat your own rules in a file at /etc/udev/rules.d/10-local.rules
Example：

If I insert my U disk in fedora3 the system will creat a node automatically as /dev/sdb1

then #udevinfo -q path -n /dev/lp0
#/block/sdb/sdb1
then #udevinfo -a -p /sys/class/usb/lp0

You can find a detailed information about this U disk

vi your 10-local.rules addbo

BUS="usb", SYSFS="0000:00:07.2", NAME="U-disk"

You can find that your U disk will be detected as "U-disk"